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采用激光干涉的方法,对压电陶瓷的压电特性进行观察和测量.主要是对压电陶瓷的振动幅度和驱动信号周期进行测量计算.采用单片机编程计时计数,计算驱动时间t和干涉条纹移动数目m,再编程算法求出压电陶瓷位移,最后将测量计算值送数码管显示. 相似文献
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This technical note describes the construction and use of a portable silver nitrate test kit designed to be safely usable in the storeroom during collection condition surveys. It provides the surveying conservator with supplementary test data to better predict the level of hazard presented by soluble salts in collections. 相似文献
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Cristina Stancioiu 《Al-Masaq: Islam & the Medieval Mediterranean》2010,22(2):129-150
The medieval city of Rhodes kept a secure position as artistic and commercial crossroads, where pottery was the most intensely traded commodity. Here, I focus on a group of fifteenth-century ceramics decorated with profile busts of men and women excavated there, near the Orthodox Church of St. Spyridon. Used in a culturally complex urban centre, these vessels borrowed elements of design, and the concept of portrait-ceramics and love pots from Italy, where spouses and lovers exchanged such objects as ritual gifts. I explore the patronage, production, and function of these ceramics within the specifics of Rhodes, to see how they were suited to serve this cosmopolitan society governed by the Hospitaller Knights of St. John of Jerusalem, while displaying comparable feelings of power and (romantic) character common in Italian portraiture. 相似文献
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采用均匀设计液相涂覆热扩散方法,研究了涂覆离子,热扩散条件等对SrTiO_3系陶瓷电性能的影响;用扫描电子显微镜(SEM)和透射电子显微镜(TEM)作微观分析,用X射线能谱仪和电子探针(EPA)作元素分析,证实钠离子(Na~ )的涂覆热扩散未在陶瓷晶粒之间产生新相,钠离子(Na~ )在晶粒内表面形成了一扩散层,讨论了扩散条件与电性能的内在联系. 相似文献
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Anna McSweeney 《Al-Masaq: Islam & the Medieval Mediterranean》2011,23(3):155-169
This paper examines the role played by the availability of tin in the development of a commercial, glazed ceramics industry in the medieval workshops of Paterna, in eastern Spain. Tin was an essential ingredient that was used by potters since the ninth century in Iraq to make ceramic glazes opaque. However, it is a relatively scarce raw material, which had to be sourced and imported by many potters; in this paper I explore these possible sources of tin, from the Far East to Iberia and south-west England. Although many factors contributed to the development of a ceramics industry in eastern Spain in the medieval period, I argue that one hitherto overlooked and important stimulus was the expansion of the trade in tin from south-west England – Devon and Cornwall – to the Mediterranean. 相似文献
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本产品是以国产原料为基础研制而成的一种新型陶瓷补裂剂.以环氧树脂为基料,以多乙烯多胺为固化剂,再添加瓷粉、增塑剂、促进剂等,经过一系列实验得出了最佳配方. 相似文献
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木材陶瓷的制备工艺现状及展望 总被引:1,自引:0,他引:1
陈璐 《毕节师范高等专科学校学报》2014,(8):90-94
木材陶瓷是近年来开始研究的一种新型环境材料,具有良好的力学性能和电、磁、耐磨和摩擦等方面的独特性能。在总结了木材陶瓷特点以及木材陶瓷的制备工艺,如熔融金属渗入法、有机聚合物前驱体法、生物模板法等的基础上,指出了现有木材陶瓷的不足,提出了木材陶瓷未来的发展方向。 相似文献
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德化陶瓷业是德化经济的重要组成部分,但由于各方面的原因,现在陶瓷旅游产业的优势还没有完全体现。陶瓷业与旅游业有着天然的产业关联性,两者的联动效应正不断加强,对优化陶瓷产业结构的作用也越发显著。文章基于产业融合互动模式的分析,对陶瓷业与旅游业之间的产业关联性进行深入分析,探讨德化陶瓷业目前发展中存在的问题,并由此提出具体实施策略。包括加强合作,走产业化道路;加强整体营销,做好综合配套服务;进行管理体制创新,协调好两大产业间的关系。 相似文献
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